fn main() {
    // neg int
    int a = 24
    var b = -a
    int c = -(24 + 3)
    int d = -24
    var e = d
    int f = -24 + -23
    i16 g = 16
    i16 h = -g
    print(a, b, c, d, e, f, g, h, '\n')

    // neg float
    float f1 = 3.1415926
    var f2 = -f1
    var f3 = -(3.14 + 1.28)
    print(f1, f2, f3, '\n')
}